Planet TRAPPIST-1 b

Detailed information about planet TRAPPIST-1 b and its parameters.

Planet

Name
TRAPPIST-1 b
Planet Status
Confirmed
Discovered in
2016
Update
2024-03-24
Mass
Mass*sin(i)
Semi-Major Axis
Orbital Period
Eccentricity
ω
Tperi
Radius
Inclination
Detection Method
Primary Transit
Mass Meas. Method
TTV
Radius Meas. Method
Primary Transit
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names
Data Source Type Result Value Result Figure Notes Reference
Molecule Data Source Type Result Value Result Figure Notes Reference
H2O
Measurements Detected 2017 - BOURRIER V.
Modeling Detected 2020 - TURBET M.

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Star

Name
TRAPPIST-1
Distance
Spectral type
M8
Apparent magnitude V
18.798
Mass
Age
Effective temperature
Radius
Metallicity [Fe/H]
0.04 ( ± 0.08 )
Detected Disc
Magnetic Field
RA2000
23:06:29.0
Dec2000
-05:02:29.0
Alternate Names
2MASS J23062928-0502285

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